/* Computes position of corners of client area (drawable area) of a window
 * based on the provided window Rect (outer position including decorations)
 * and based on the style of the window in question. If the window pointer
 * or the window handle is NULL, a fully decorated window (caption and
 * border) is assumed.
 * Furthermore, if wantPosOutside is set to true, the output client Rect
 * will follow freeGLUT's window specification convention in which the
 * top-left corner is at the outside of the window, the size
 * (rect.right-rect.left,rect.bottom-rect.top) is the size of the drawable
 * area.
 */
void fghComputeClientAreaFromWindowRect( const SFG_Window *window, RECT *windowRect, BOOL wantPosOutside )
{
    DWORD windowStyle = 0;
    int xBorderWidth = 0, yBorderWidth = 0;

    if (window && window->Window.Handle)
        windowStyle = GetWindowLong(window->Window.Handle, GWL_STYLE);
    else
        windowStyle = WS_OVERLAPPEDWINDOW;

    /* If window has title bar, correct rect for it */
    if (windowStyle & WS_MAXIMIZEBOX) /* Need to query for WS_MAXIMIZEBOX to see if we have a title bar, the WS_CAPTION query is also true for a WS_DLGFRAME only... */
        if (wantPosOutside)
            windowRect->bottom -= GetSystemMetrics( SM_CYCAPTION );
        else
            windowRect->top    += GetSystemMetrics( SM_CYCAPTION );

    /* get width of window's borders (frame), correct rect for it.
     * Note, borders can be of zero width if style does not specify borders
     */
    fghGetBorderWidth(windowStyle, &xBorderWidth, &yBorderWidth);
    if (wantPosOutside)
    {
        windowRect->right  -= xBorderWidth * 2;
        windowRect->bottom -= yBorderWidth * 2;
    }
    else
    {
        windowRect->left   += xBorderWidth;
        windowRect->right  -= xBorderWidth;
        windowRect->top    += yBorderWidth;
        windowRect->bottom -= yBorderWidth;
    }
}
/* Computes position of corners of window Rect (outer position including
 * decorations) based on the provided client rect and based on the style
 * of the window in question.
 * If posIsOutside is set to true, the input client Rect is taken to follow
 * freeGLUT's window specification convention in which the top-left corner
 * is at the outside of the window, while the size
 * (rect.right-rect.left,rect.bottom-rect.top) is the size of the drawable
 * area.
 */
void fghComputeWindowRectFromClientArea_UseStyle( const DWORD windowStyle, RECT *clientRect, BOOL posIsOutside )
{
    int xBorderWidth = 0, yBorderWidth = 0;

    /* If window has title bar, correct rect for it */
    if (windowStyle & WS_MAXIMIZEBOX) /* Need to query for WS_MAXIMIZEBOX to see if we have a title bar, the WS_CAPTION query is also true for a WS_DLGFRAME only... */
        if (posIsOutside)
            clientRect->bottom += GetSystemMetrics( SM_CYCAPTION );
        else
            clientRect->top -= GetSystemMetrics( SM_CYCAPTION );

    /* get width of window's borders (frame), correct rect for it.
     * Note, borders can be of zero width if style does not specify borders
     */
    fghGetBorderWidth(windowStyle, &xBorderWidth, &yBorderWidth);
    if (posIsOutside)
    {
        clientRect->right  += xBorderWidth * 2;
        clientRect->bottom += yBorderWidth * 2;
    }
    else
    {
        clientRect->left   -= xBorderWidth;
        clientRect->right  += xBorderWidth;
        clientRect->top    -= yBorderWidth;
        clientRect->bottom += yBorderWidth;
    }
}
Esempio n. 3
0
int fgPlatformGlutGet ( GLenum eWhat )
{
    int returnValue ;
    GLboolean boolValue ;

    int nsamples = 0;

    switch( eWhat )
    {
    case GLUT_WINDOW_NUM_SAMPLES:
      glGetIntegerv(WGL_SAMPLES_ARB, &nsamples);
      return nsamples;

    /* Handle the OpenGL inquiries */
    case GLUT_WINDOW_RGBA:
#if defined(_WIN32_WCE)
      boolValue = (GLboolean)0;  /* WinCE doesn't support this feature */
#else
      glGetBooleanv ( GL_RGBA_MODE, &boolValue );
      returnValue = boolValue ? 1 : 0;
#endif
      return returnValue;
    case GLUT_WINDOW_DOUBLEBUFFER:
#if defined(_WIN32_WCE)
      boolValue = (GLboolean)0;  /* WinCE doesn't support this feature */
#else
      glGetBooleanv ( GL_DOUBLEBUFFER, &boolValue );
      returnValue = boolValue ? 1 : 0;
#endif
      return returnValue;
    case GLUT_WINDOW_STEREO:
#if defined(_WIN32_WCE)
      boolValue = (GLboolean)0;  /* WinCE doesn't support this feature */
#else
      glGetBooleanv ( GL_STEREO, &boolValue );
      returnValue = boolValue ? 1 : 0;
#endif
      return returnValue;

    case GLUT_WINDOW_RED_SIZE:
      glGetIntegerv ( GL_RED_BITS, &returnValue );
      return returnValue;
    case GLUT_WINDOW_GREEN_SIZE:
      glGetIntegerv ( GL_GREEN_BITS, &returnValue );
      return returnValue;
    case GLUT_WINDOW_BLUE_SIZE:
      glGetIntegerv ( GL_BLUE_BITS, &returnValue );
      return returnValue;
    case GLUT_WINDOW_ALPHA_SIZE:
      glGetIntegerv ( GL_ALPHA_BITS, &returnValue );
      return returnValue;
    case GLUT_WINDOW_ACCUM_RED_SIZE:
#if defined(_WIN32_WCE)
      returnValue = 0;  /* WinCE doesn't support this feature */
#else
      glGetIntegerv ( GL_ACCUM_RED_BITS, &returnValue );
#endif
      return returnValue;
    case GLUT_WINDOW_ACCUM_GREEN_SIZE:
#if defined(_WIN32_WCE)
      returnValue = 0;  /* WinCE doesn't support this feature */
#else
      glGetIntegerv ( GL_ACCUM_GREEN_BITS, &returnValue );
#endif
      return returnValue;
    case GLUT_WINDOW_ACCUM_BLUE_SIZE:
#if defined(_WIN32_WCE)
      returnValue = 0;  /* WinCE doesn't support this feature */
#else
      glGetIntegerv ( GL_ACCUM_BLUE_BITS, &returnValue );
#endif
      return returnValue;
    case GLUT_WINDOW_ACCUM_ALPHA_SIZE:
#if defined(_WIN32_WCE)
      returnValue = 0;  /* WinCE doesn't support this feature */
#else
      glGetIntegerv ( GL_ACCUM_ALPHA_BITS, &returnValue );
#endif
      return returnValue;
    case GLUT_WINDOW_DEPTH_SIZE:
      glGetIntegerv ( GL_DEPTH_BITS, &returnValue );
      return returnValue;

    case GLUT_WINDOW_BUFFER_SIZE:
      returnValue = 1 ;                                      /* ????? */
      return returnValue;
    case GLUT_WINDOW_STENCIL_SIZE:
      returnValue = 0 ;                                      /* ????? */
      return returnValue;

    case GLUT_WINDOW_X:
    case GLUT_WINDOW_Y:
    case GLUT_WINDOW_WIDTH:
    case GLUT_WINDOW_HEIGHT:
    {
        /*
         *  There is considerable confusion about the "right thing to
         *  do" concerning window  size and position.  GLUT itself is
         *  not consistent between Windows and UNIX/X11; since
         *  platform independence is a virtue for "freeglut", we
         *  decided to break with GLUT's behaviour.
         *
         *  Under UNIX/X11, it is apparently not possible to get the
         *  window border sizes in order to subtract them off the
         *  window's initial position until some time after the window
         *  has been created.  Therefore we decided on the following
         *  behaviour, both under Windows and under UNIX/X11:
         *  - When you create a window with position (x,y) and size
         *    (w,h), the upper left hand corner of the outside of the
         *    window is at (x,y) and the size of the drawable area  is
         *    (w,h).
         *  - When you query the size and position of the window--as
         *    is happening here for Windows--"freeglut" will return
         *    the size of the drawable area--the (w,h) that you
         *    specified when you created the window--and the coordinates
         *    of the upper left hand corner of the drawable
         *    area--which is NOT the (x,y) you specified.
         */

        RECT winRect;

        freeglut_return_val_if_fail( fgStructure.CurrentWindow != NULL, 0 );

#if defined(_WIN32_WCE)
        GetWindowRect( fgStructure.CurrentWindow->Window.Handle, &winRect );
#else
        winRect = fghGetClientArea(fgStructure.CurrentWindow, FALSE);
#endif /* defined(_WIN32_WCE) */

        switch( eWhat )
        {
        case GLUT_WINDOW_X:      return winRect.left                ;
        case GLUT_WINDOW_Y:      return winRect.top                 ;
        case GLUT_WINDOW_WIDTH:  return winRect.right - winRect.left;
        case GLUT_WINDOW_HEIGHT: return winRect.bottom - winRect.top;
        }
    }
    break;

    case GLUT_WINDOW_BORDER_WIDTH :
    case GLUT_WINDOW_HEADER_HEIGHT :
#if defined(_WIN32_WCE)
        return 0;
#else
        {
            DWORD windowStyle;

            if (fgStructure.CurrentWindow && fgStructure.CurrentWindow->Window.Handle)
                windowStyle = GetWindowLong(fgStructure.CurrentWindow->Window.Handle, GWL_STYLE);
            else
                /* If no window, return sizes for a default window with title bar and border */
                windowStyle = WS_OVERLAPPEDWINDOW;
            
            switch( eWhat )
            {
            case GLUT_WINDOW_BORDER_WIDTH:
                {
                    int xBorderWidth, yBorderWidth;
                    fghGetBorderWidth(windowStyle, &xBorderWidth, &yBorderWidth);
                    return xBorderWidth;
                }
            case GLUT_WINDOW_HEADER_HEIGHT:
                /* Need to query for WS_MAXIMIZEBOX to see if we have a title bar, the WS_CAPTION query is also true for a WS_DLGFRAME only... */
                return (windowStyle & WS_MAXIMIZEBOX)? GetSystemMetrics( SM_CYCAPTION ) : 0;
            }
        }
#endif /* defined(_WIN32_WCE) */

    case GLUT_DISPLAY_MODE_POSSIBLE:
#if defined(_WIN32_WCE)
        return 0;
#else
        return fgSetupPixelFormat( fgStructure.CurrentWindow, GL_TRUE,
                                    PFD_MAIN_PLANE );
#endif /* defined(_WIN32_WCE) */


    case GLUT_WINDOW_FORMAT_ID:
#if !defined(_WIN32_WCE)
        if( fgStructure.CurrentWindow != NULL )
            return GetPixelFormat( fgStructure.CurrentWindow->Window.pContext.Device );
#endif /* defined(_WIN32_WCE) */
        return 0;

    default:
        fgWarning( "glutGet(): missing enum handle %d", eWhat );
        break;
    }

	return -1;
}
Esempio n. 4
0
/*
 * General settings query method
 */
int FGAPIENTRY glutGet( GLenum eWhat )
{
#if TARGET_HOST_MS_WINDOWS
    int returnValue ;
    GLboolean boolValue ;
#endif

    int nsamples = 0;

    switch (eWhat)
    {
    case GLUT_INIT_STATE:
        return fgState.Initialised;

    case GLUT_ELAPSED_TIME:
        return fgElapsedTime();
    }

    FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutGet" );

    /* XXX In chronological code add order.  (WHY in that order?) */
    switch( eWhat )
    {
    /* Following values are stored in fgState and fgDisplay global structures */
    case GLUT_SCREEN_WIDTH:         return fgDisplay.ScreenWidth   ;
    case GLUT_SCREEN_HEIGHT:        return fgDisplay.ScreenHeight  ;
    case GLUT_SCREEN_WIDTH_MM:      return fgDisplay.ScreenWidthMM ;
    case GLUT_SCREEN_HEIGHT_MM:     return fgDisplay.ScreenHeightMM;
    case GLUT_INIT_WINDOW_X:        return fgState.Position.Use ?
                                           fgState.Position.X : -1 ;
    case GLUT_INIT_WINDOW_Y:        return fgState.Position.Use ?
                                           fgState.Position.Y : -1 ;
    case GLUT_INIT_WINDOW_WIDTH:    return fgState.Size.Use ?
                                           fgState.Size.X : -1     ;
    case GLUT_INIT_WINDOW_HEIGHT:   return fgState.Size.Use ?
                                           fgState.Size.Y : -1     ;
    case GLUT_INIT_DISPLAY_MODE:    return fgState.DisplayMode     ;
    case GLUT_INIT_MAJOR_VERSION:   return fgState.MajorVersion    ;
    case GLUT_INIT_MINOR_VERSION:   return fgState.MinorVersion    ;
    case GLUT_INIT_FLAGS:           return fgState.ContextFlags    ;
    case GLUT_INIT_PROFILE:         return fgState.ContextProfile  ;

#if TARGET_HOST_POSIX_X11
    /*
     * The window/context specific queries are handled mostly by
     * fghGetConfig().
     */
    case GLUT_WINDOW_NUM_SAMPLES:
#ifdef GLX_VERSION_1_3
        glGetIntegerv(GL_SAMPLES, &nsamples);
#endif
        return nsamples;

    /*
     * The rest of GLX queries under X are general enough to use a macro to
     * check them
     */
#   define GLX_QUERY(a,b) case a: return fghGetConfig( b );

    GLX_QUERY( GLUT_WINDOW_RGBA,                GLX_RGBA                );
    GLX_QUERY( GLUT_WINDOW_DOUBLEBUFFER,        GLX_DOUBLEBUFFER        );
    GLX_QUERY( GLUT_WINDOW_BUFFER_SIZE,         GLX_BUFFER_SIZE         );
    GLX_QUERY( GLUT_WINDOW_STENCIL_SIZE,        GLX_STENCIL_SIZE        );
    GLX_QUERY( GLUT_WINDOW_DEPTH_SIZE,          GLX_DEPTH_SIZE          );
    GLX_QUERY( GLUT_WINDOW_RED_SIZE,            GLX_RED_SIZE            );
    GLX_QUERY( GLUT_WINDOW_GREEN_SIZE,          GLX_GREEN_SIZE          );
    GLX_QUERY( GLUT_WINDOW_BLUE_SIZE,           GLX_BLUE_SIZE           );
    GLX_QUERY( GLUT_WINDOW_ALPHA_SIZE,          GLX_ALPHA_SIZE          );
    GLX_QUERY( GLUT_WINDOW_ACCUM_RED_SIZE,      GLX_ACCUM_RED_SIZE      );
    GLX_QUERY( GLUT_WINDOW_ACCUM_GREEN_SIZE,    GLX_ACCUM_GREEN_SIZE    );
    GLX_QUERY( GLUT_WINDOW_ACCUM_BLUE_SIZE,     GLX_ACCUM_BLUE_SIZE     );
    GLX_QUERY( GLUT_WINDOW_ACCUM_ALPHA_SIZE,    GLX_ACCUM_ALPHA_SIZE    );
    GLX_QUERY( GLUT_WINDOW_STEREO,              GLX_STEREO              );

#   undef GLX_QUERY

    /* Colormap size is handled in a bit different way than all the rest */
    case GLUT_WINDOW_COLORMAP_SIZE:
        if( (fghGetConfig( GLX_RGBA )) || (fgStructure.CurrentWindow == NULL) )
        {
            /*
             * We've got a RGBA visual, so there is no colormap at all.
             * The other possibility is that we have no current window set.
             */
            return 0;
        }
        else
        {
          const GLXFBConfig * fbconfig =
                fgStructure.CurrentWindow->Window.FBConfig;

          XVisualInfo * visualInfo =
                glXGetVisualFromFBConfig( fgDisplay.Display, *fbconfig );

          const int result = visualInfo->visual->map_entries;

          XFree(visualInfo);

          return result;
        }

    /*
     * Those calls are somewhat similiar, as they use XGetWindowAttributes()
     * function
     */
    case GLUT_WINDOW_X:
    case GLUT_WINDOW_Y:
    case GLUT_WINDOW_BORDER_WIDTH:
    case GLUT_WINDOW_HEADER_HEIGHT:
    {
        int x, y;
        Window w;

        if( fgStructure.CurrentWindow == NULL )
            return 0;

        XTranslateCoordinates(
            fgDisplay.Display,
            fgStructure.CurrentWindow->Window.Handle,
            fgDisplay.RootWindow,
            0, 0, &x, &y, &w);

        switch ( eWhat )
        {
        case GLUT_WINDOW_X: return x;
        case GLUT_WINDOW_Y: return y;
        }

        if ( w == 0 )
            return 0;
        XTranslateCoordinates(
            fgDisplay.Display,
            fgStructure.CurrentWindow->Window.Handle,
            w, 0, 0, &x, &y, &w);

        switch ( eWhat )
        {
        case GLUT_WINDOW_BORDER_WIDTH:  return x;
        case GLUT_WINDOW_HEADER_HEIGHT: return y;
        }
    }

    case GLUT_WINDOW_WIDTH:
    case GLUT_WINDOW_HEIGHT:
    {
        XWindowAttributes winAttributes;

        if( fgStructure.CurrentWindow == NULL )
            return 0;
        XGetWindowAttributes(
            fgDisplay.Display,
            fgStructure.CurrentWindow->Window.Handle,
            &winAttributes
        );
        switch ( eWhat )
        {
        case GLUT_WINDOW_WIDTH:            return winAttributes.width ;
        case GLUT_WINDOW_HEIGHT:           return winAttributes.height ;
        }
    }

    /* I do not know yet if there will be a fgChooseVisual() function for Win32 */
    case GLUT_DISPLAY_MODE_POSSIBLE:
    {
        /*  We should not have to call fgChooseFBConfig again here.  */
        GLXFBConfig * fbconfig;
        int isPossible;

        fbconfig = fgChooseFBConfig(NULL);

        if (fbconfig == NULL)
        {
            isPossible = 0;
        }
        else
        {
            isPossible = 1;
            XFree(fbconfig);
        }

        return isPossible;
    }

    /* This is system-dependant */
    case GLUT_WINDOW_FORMAT_ID:
        if( fgStructure.CurrentWindow == NULL )
            return 0;

        return fghGetConfig( GLX_VISUAL_ID );

#elif TARGET_HOST_MS_WINDOWS

    case GLUT_WINDOW_NUM_SAMPLES:
      glGetIntegerv(WGL_SAMPLES_ARB, &nsamples);
      return nsamples;

    /* Handle the OpenGL inquiries */
    case GLUT_WINDOW_RGBA:
#if defined(_WIN32_WCE)
      boolValue = (GLboolean)0;  /* WinCE doesn't support this feature */
#else
      glGetBooleanv ( GL_RGBA_MODE, &boolValue );
      returnValue = boolValue ? 1 : 0;
#endif
      return returnValue;
    case GLUT_WINDOW_DOUBLEBUFFER:
#if defined(_WIN32_WCE)
      boolValue = (GLboolean)0;  /* WinCE doesn't support this feature */
#else
      glGetBooleanv ( GL_DOUBLEBUFFER, &boolValue );
      returnValue = boolValue ? 1 : 0;
#endif
      return returnValue;
    case GLUT_WINDOW_STEREO:
#if defined(_WIN32_WCE)
      boolValue = (GLboolean)0;  /* WinCE doesn't support this feature */
#else
      glGetBooleanv ( GL_STEREO, &boolValue );
      returnValue = boolValue ? 1 : 0;
#endif
      return returnValue;

    case GLUT_WINDOW_RED_SIZE:
      glGetIntegerv ( GL_RED_BITS, &returnValue );
      return returnValue;
    case GLUT_WINDOW_GREEN_SIZE:
      glGetIntegerv ( GL_GREEN_BITS, &returnValue );
      return returnValue;
    case GLUT_WINDOW_BLUE_SIZE:
      glGetIntegerv ( GL_BLUE_BITS, &returnValue );
      return returnValue;
    case GLUT_WINDOW_ALPHA_SIZE:
      glGetIntegerv ( GL_ALPHA_BITS, &returnValue );
      return returnValue;
    case GLUT_WINDOW_ACCUM_RED_SIZE:
#if defined(_WIN32_WCE)
      returnValue = 0;  /* WinCE doesn't support this feature */
#else
      glGetIntegerv ( GL_ACCUM_RED_BITS, &returnValue );
#endif
      return returnValue;
    case GLUT_WINDOW_ACCUM_GREEN_SIZE:
#if defined(_WIN32_WCE)
      returnValue = 0;  /* WinCE doesn't support this feature */
#else
      glGetIntegerv ( GL_ACCUM_GREEN_BITS, &returnValue );
#endif
      return returnValue;
    case GLUT_WINDOW_ACCUM_BLUE_SIZE:
#if defined(_WIN32_WCE)
      returnValue = 0;  /* WinCE doesn't support this feature */
#else
      glGetIntegerv ( GL_ACCUM_BLUE_BITS, &returnValue );
#endif
      return returnValue;
    case GLUT_WINDOW_ACCUM_ALPHA_SIZE:
#if defined(_WIN32_WCE)
      returnValue = 0;  /* WinCE doesn't support this feature */
#else
      glGetIntegerv ( GL_ACCUM_ALPHA_BITS, &returnValue );
#endif
      return returnValue;
    case GLUT_WINDOW_DEPTH_SIZE:
      glGetIntegerv ( GL_DEPTH_BITS, &returnValue );
      return returnValue;

    case GLUT_WINDOW_BUFFER_SIZE:
      returnValue = 1 ;                                      /* ????? */
      return returnValue;
    case GLUT_WINDOW_STENCIL_SIZE:
      returnValue = 0 ;                                      /* ????? */
      return returnValue;

    case GLUT_WINDOW_X:
    case GLUT_WINDOW_Y:
    case GLUT_WINDOW_WIDTH:
    case GLUT_WINDOW_HEIGHT:
    {
        /*
         *  There is considerable confusion about the "right thing to
         *  do" concerning window  size and position.  GLUT itself is
         *  not consistent between Windows and UNIX/X11; since
         *  platform independence is a virtue for "freeglut", we
         *  decided to break with GLUT's behaviour.
         *
         *  Under UNIX/X11, it is apparently not possible to get the
         *  window border sizes in order to subtract them off the
         *  window's initial position until some time after the window
         *  has been created.  Therefore we decided on the following
         *  behaviour, both under Windows and under UNIX/X11:
         *  - When you create a window with position (x,y) and size
         *    (w,h), the upper left hand corner of the outside of the
         *    window is at (x,y) and the size of the drawable area  is
         *    (w,h).
         *  - When you query the size and position of the window--as
         *    is happening here for Windows--"freeglut" will return
         *    the size of the drawable area--the (w,h) that you
         *    specified when you created the window--and the coordinates
         *    of the upper left hand corner of the drawable
         *    area--which is NOT the (x,y) you specified.
         */

        RECT winRect;

        freeglut_return_val_if_fail( fgStructure.CurrentWindow != NULL, 0 );

#if defined(_WIN32_WCE)
        GetWindowRect( fgStructure.CurrentWindow->Window.Handle, &winRect );
#else
        winRect = fghGetClientArea(fgStructure.CurrentWindow, FALSE);
#endif /* defined(_WIN32_WCE) */

        switch( eWhat )
        {
        case GLUT_WINDOW_X:      return winRect.left                ;
        case GLUT_WINDOW_Y:      return winRect.top                 ;
        case GLUT_WINDOW_WIDTH:  return winRect.right - winRect.left;
        case GLUT_WINDOW_HEIGHT: return winRect.bottom - winRect.top;
        }
    }
    break;

    case GLUT_WINDOW_BORDER_WIDTH :
    case GLUT_WINDOW_HEADER_HEIGHT :
#if defined(_WIN32_WCE)
        return 0;
#else
        {
            DWORD windowStyle;

            if (fgStructure.CurrentWindow && fgStructure.CurrentWindow->Window.Handle)
                windowStyle = GetWindowLong(fgStructure.CurrentWindow->Window.Handle, GWL_STYLE);
            else
                /* If no window, return sizes for a default window with title bar and border */
                windowStyle = WS_OVERLAPPEDWINDOW;
            
            switch( eWhat )
            {
            case GLUT_WINDOW_BORDER_WIDTH:
                {
                    int xBorderWidth, yBorderWidth;
                    fghGetBorderWidth(windowStyle, &xBorderWidth, &yBorderWidth);
                    return xBorderWidth;
                }
            case GLUT_WINDOW_HEADER_HEIGHT:
                /* Need to query for WS_MAXIMIZEBOX to see if we have a title bar, the WS_CAPTION query is also true for a WS_DLGFRAME only... */
                return (windowStyle & WS_MAXIMIZEBOX)? GetSystemMetrics( SM_CYCAPTION ) : 0;
            }
        }
#endif /* defined(_WIN32_WCE) */

    case GLUT_DISPLAY_MODE_POSSIBLE:
#if defined(_WIN32_WCE)
        return 0;
#else
        return fgSetupPixelFormat( fgStructure.CurrentWindow, GL_TRUE,
                                    PFD_MAIN_PLANE );
#endif /* defined(_WIN32_WCE) */


    case GLUT_WINDOW_FORMAT_ID:
#if !defined(_WIN32_WCE)
        if( fgStructure.CurrentWindow != NULL )
            return GetPixelFormat( fgStructure.CurrentWindow->Window.Device );
#endif /* defined(_WIN32_WCE) */
        return 0;

#endif

    /* The window structure queries */
    case GLUT_WINDOW_PARENT:
        if( fgStructure.CurrentWindow         == NULL ) return 0;
        if( fgStructure.CurrentWindow->Parent == NULL ) return 0;
        return fgStructure.CurrentWindow->Parent->ID;

    case GLUT_WINDOW_NUM_CHILDREN:
        if( fgStructure.CurrentWindow == NULL )
            return 0;
        return fgListLength( &fgStructure.CurrentWindow->Children );

    case GLUT_WINDOW_CURSOR:
        if( fgStructure.CurrentWindow == NULL )
            return 0;
        return fgStructure.CurrentWindow->State.Cursor;

    case GLUT_MENU_NUM_ITEMS:
        if( fgStructure.CurrentMenu == NULL )
            return 0;
        return fgListLength( &fgStructure.CurrentMenu->Entries );

    case GLUT_ACTION_ON_WINDOW_CLOSE:
        return fgState.ActionOnWindowClose;

    case GLUT_VERSION :
        return VERSION_MAJOR * 10000 + VERSION_MINOR * 100 + VERSION_PATCH;

    case GLUT_RENDERING_CONTEXT:
        return fgState.UseCurrentContext ? GLUT_USE_CURRENT_CONTEXT
                                         : GLUT_CREATE_NEW_CONTEXT;

    case GLUT_DIRECT_RENDERING:
        return fgState.DirectContext;

    case GLUT_FULL_SCREEN:
        return fgStructure.CurrentWindow->State.IsFullscreen;

    case GLUT_AUX:
      return fgState.AuxiliaryBufferNumber;

    case GLUT_MULTISAMPLE:
      return fgState.SampleNumber;

    default:
        fgWarning( "glutGet(): missing enum handle %d", eWhat );
        break;
    }
    return -1;
}